34 35 003 Replacing a brake pad sensor (rear)

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2013 BMW 328xi, 2013 BMW 328i, 2012 BMW 328xi, 2012 BMW 328i, and 2011 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: The brake pad wear sensor must be replaced once it has been removed (brake pad wear sensor loses its retention capability in the brake pad).

If a brake pad sensor that has already been ground has to be replaced even though the minimum brake pad thickness has not yet been reached, you must observe the following: The new sliding contact must be filed down with a file to the same length as the ground sliding contact.

Necessary preliminary tasks:

Remove wheel

Slacken nut (1).

Pull wheel arch trim (2) gently to one side.

Disengage cable from holders (3).

Fig 1: Wheel Arch Trim, Holder, Nut And Removal Direction

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Installation:

Ensure proper locking of the plug connector and proper seating of the cable in the brackets.

Fig 2: Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Disengage cable from holders (1).

Detach brake pad wear sensor (2) in direction of arrow from brake caliper (3).

Installation:

Make sure holders (1) and brake pad wear sensor (2) are correctly seated in brake caliper.

Fig 3: Cable Holders And Brake Pad Sensor

Courtesy of BMW OF NORTH AMERICA, INC.